diff --git a/src/sinkSender.c b/src/sinkSender.c
index 4106c08..bd72968 100644
--- a/src/sinkSender.c
+++ b/src/sinkSender.c
@@ -67,7 +67,7 @@ static void sinkSenderSendMinute() {
   minuteBuffer.s.totalRunningHours = info.uptime / 3600;
   minuteBuffer.s.totalPowercycles = 0;
   minuteBuffer.s.totalWatchdogResets = 0;
-  minuteBuffer.s.version = strtol(VERSION, NULL, 16);
+  minuteBuffer.s.version = strtoll(VERSION, NULL, 16);
 
   memset(minuteBuffer.s.deviceId, 0, sizeof(minuteBuffer.s.deviceId));
   strcpy(minuteBuffer.s.deviceId, deviceId);